Apparatus for recutting files.



No. 761,963. I l PATBNTED JUNE 7, 1904.

W. s. JOHNSON. y APPARATUS FOR NBOUTTING PILES.y

APPLICATION FILED JAN.`25, 1904. No MODEL. a MEETS-SHEET 1.

No. 761,968. PATENTBD JUNI: '1, 1904.

` w. s.4 JOHNSON.

APPARATUS FOR BECOMING-FILES.

- APPLICATION FILED JAN. 2.5, 1904. l0 IODEL. 3 SHEETS--SHEET 2.

No. 761,968. PATENTED JUNE 7. 1904. f l l w. s. JoHNsoN.

APPARATUS FOR REGUTTING FILES.

n APPLICATION FILED JAN. 25, 1904. NO MODEL. Y 3 SHEETS-SHEET 3.v

UNITED STATES Patented .Tune 7, 1904. I'

yPATENT OFFICE.

WILLIAM SAMUELv JOHNSON, OF INDIANAPOLIS, INDIANA, ASSIGNOR OF p ONE-HALF TO SMITH FULMEB., OF CLEVELAND, OHIO.

APPARATUS FOR -RECUTTING FILES.

SPECIFICATION forming part of Letters Patent No. 761,968, dated June 7, 1904. Application ileclIanuaryZ, 1904. Serial No. 190,510. (No model.)

T LZ/ 'lull/0717J it muy concern:

Beit known thatl, WILLIAM SAMUEL JOHN- SON, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Apparatus for Recutting Files, of which the following is a specification, reference being had therein to the accompanying drawings. y IO This invention relates to improvements in means vfor recutting iilcs, as hereinafter set forth.

The object of this invention is toL provide a means whereby iiles may be effectually and I 5 rapidly recut by exposing the said {iles against a jet of corundum, einery, or sand reduced to a finely-divided state, by means of which the iiles thus exposed are rapidly and cheaply recut; also, to provide means whereby the emery 2O thus used will be reclaimed and used again, and thus continuously` and also to provide means whereby the finely-Heating particles of the finely-divided material will be collected and prevented from disseminating in the atmos-A phere in the room or place in which the apparatus is situated, thereby preventing the same injuring the health of the operator.l I attain these objects by means of the apparatus -illustrated inthe accompanying drawings, in

which similar numerals of reference designate like parts throughout the several views.

Figure 1 is a front elevational View of my apparatus. Fig. 2 is a plan view of the same. Fig. 3 is a detail sectional elevational view of the collecting-chamber, taken throughthe line A B. (See Fig. 4.) Fig. 4 is a plan view of the same, taken through the line O D. (See Fig. 3.) Fig. 5 is an enlarged detail part-sectional view of the siphon, and Fig. '6 is an enlarged detail view ofthe nozzle of the same. The boiler 1 may be of a vertical or any suitable type of suflicient capacity to supply steam-operating siphons" of the collectingchambers 2. Any. number of collecting-chambers2 may be employed in connection with this apparatus, according to the number of operators to be employed, one collecting-chamber being reeuired for each operator. The collectingchambers, which constitutes one of the main features of my invention, comprises a closed box provided with a vertically-extending partition 3, the top portion 4 of which is inclined forwardly for th'e purpose of more effectually directing the fine particles of dust that float into the compartment 5 downwardly 5 5 to the contracted bottom portion 6 of said compartment. A vent-opening 7 is formed in the4 top inclined portion 4 of thepartition 3, and the same is provided for the purpose of permitting the vapor collected in the compartment 5 escaping into the compartment 8 and. thence through the exit-fine 9, connected thereto. The bottom contracted portion 6 of the compartment 5 is provided with the sloping bottoms 10 and 11, by means of which 65 those particles of the finely-divided material used for cutting the files when descending by gravity will be directed by said sloping bottom to the bottom contracted portion 6 and there concentrate for the purpose hereinafter described. The inclined sloping bottom portions 10 and 11 are provided with tin, zinc, andothermetallic lining to further facilitate the flow of thematerial to the contracted bottom portion 6 of said chamber. Since the 75 siphon arrangement connected with the said .collecting-chambers 2 are both alike,a description of one will suffice.

The siphon suction-pipe 12 extends from the contracted bottom portion 6 of the com- 30 partment 5 along the inclined bottom portion 11 to bev connected to the T 13 by the nipple 13". The T 13 has one of its ends reduced and tapped to receive the removable nozzle 15, .which nozzle has the bore 16 at its point 85' or exit end slightly reduced for the usual purpose of increasing the velocity of the fiuid or semifluid passing therethrough. In'the endv 17 of the T-'piece opposed to the reduced end 14 of the T-piece is screwed the nipple or 90 bushing 18, which nipple is also interiorly threaded to receive the steam-jet nozzle 19, which latter is adjustably screwed therein, so that the reduced end or tip 2O of said steamnozzle may be adjusted to position in relation to the nozzle 15. The end of the nozzle 19 is .threaded to be connected to the elbow 21, and the said elbow 21 is connected in the usual or any suitable way to the distributing-pipe or header 22. A suitable globe or other valve 23 is situated between the header 22 and the elbow 21, and the same is provided for the purpose or' turning on and shutting oif the steam from the jet-nozzle to either start or stop'the operation of the latter.

Thejet-nozzle 15, as will be noted, is situated at the `i'ront opening of the chamber 5 and has its jet end directed toward the removable block 24, against which the sand or emery blast issuing from the said nozzle 15 impinges, and thus when said block is worn by said blast the same is readily removed and replaced by another such block, thereby preserving the partition 3 from injury.

The distributing-pipe or header 22 is connected to the boiler 1 by a pipe 25, and to the opposite end of the said pipe 22 are connected the branch pipes 26 and 27,which connect said steam-pipe 22 to the steam-coils 28, which latter are situated on the rest upon the chambers 2. A globe-valve 29 is situated between the pipes 26 and 27, and the same is provided for the purpose of shutting off or turning on the steam to the steam-coils 28. A similar valve 30 is connected to the end of the last coil, and the same is provided for the purpose of drawing the condensed steam from said steam-coils when such is necessary.

A door 31 is provided to close the front opening of the compartment 5, and said door is provided with an angular hand-hole 32,

through which the files are inserted to be operated upon by the jet which passes into the interior of the chamber 5 and are held in proper position relative to the blast to be recut. This arrangement of the hand-holes renders it possible to insert the files with practically no chance for the escape of dust during the operation, as the hand of the operator closes the lower part of the opening, while the upper portion is contracted, as described, so as to leave a Very small opening leading to the collecting-chamber.

The operation of this invention is simple and will be readily understood from the following: The corundum, emery, or sand, reduced to a iinely-divided state, is placed in the bottom reduced portion 6 ot' the chamber 5 in suiicient quantity to cover the open bottom end of the Siphon-pipe 12. The operator now turns on the steam by means ol the valve 2?) to operate the siphon, which operation will be readily understood on examination ol Fig. 5 and the following description. ',lhe steam, which is preferably at a high pressure, [lows through the tip 2O of the nozzle 19 and then passing through the nozzle 15 creates quite a vacuum in the interior chamber portion oll the T 13, thereby drawing the sand from the botltom portion 6 of the chamber 5 through the siphon-pipe12, the connecting-pipe 13 lo and into said chamber portion of the T 13, and thence by the rapid flowing steam from the jet of steam issuing from the nipple 20 is carried through the ejecting-nozzle 15 at a high pressure and velocity. 'lhe operator now takes a file, inserts the same by hand through the hand-hole 32 into the interior ol the chamber 5 in position to cause the particles oi linelydivided material issuing from the nozzle to impinge against it. The said lile having been held in such position for a time suilieient to thoroughly reent said lile, the operator rl moves the same from contact with said blast and places the said iile on the steam-coils 2S for the purpose of evaporating and removing the moisture from said liles and preventilig them rusting.

Having thus fully described this my invention, what I claim as new and useful, and de- ,sire to cover by Letters Patent olI the United States therefor, is-

ln an apparatus of the character deserilwd, a collecting-chamber having a liront opening therein, a door closing said opening provided with an angular cut-out portion contracted toward its top, a partition mounted in the chamber comprising a vertical portion and a l'orwardly-inclined upper portion extending to the top of the chamber provided with a flue therein near the upper end of the same, a removable guard-block disposed within the angle of the partition, an ejecting-nozzle mounted in the front wall oi the chamber opposite` to the guardblocli, and a siphon communicating therewith.

In testimony whereot'l aliix my signature in presence of two witnesses.

WllllllAlll SlllUllll .IUHNSH Witnesses:

THOMPSON R. Bum., SMITH FULMm-i. 

